Outcomes of late repeat MVD for HFS
| ID | Age | Sex | Interim to second MVD | Findings at second MVD | Spasm result | Quality of life | Complications |
|---|---|---|---|---|---|---|---|
| For patients with less than a 2 year interim between operations, the time period is rounded to the nearest month; otherwise, the interval is rounded to the nearest year. Patient 16 had bilateral HFS which was more severe on the treated side. Patient 21 was the only patient originally treated at UPMC. Findings at second MVD include visualisation of old felt pledgets and persistent offending vessels. AICA, anterior inferior cerebellar artery; CN 7, facial nerve; dB, decibels; HBS, House-Brackmann score; HFS, hemifacial spasm; MVD, microvascular decompression; PICA, posterior inferior cerebellar artery. SAT, speech awareness threshold. | |||||||
| 16 | 53 | F | 6 years(recurrence) | Distal felt migration alongPICA loop | Improved | Fair | Wound infection debrided1 month post-operatively |
| 17 | 65 | M | 5 years(unknown) | Distal felt migration alongPICA loop | Lost tofollow up | Lost to follow up | None known |
| 18 | 56 | F | 7 months(failure) | AICA, PICA, significantarachnoidal scarring, nofelt visualised | Cured | Good | HBS increased from 2 to 3 |
| 19 | 48 | F | 17 months (failure) | AICA, PICA, no felt visualised | Cured | Excellent | None |
| 20 | 50 | F | 22 months(failure) | Felt partially migrated alongPICA loop | Failed | Underwentthird operation | None |
| 21 | 54 | F | 5 months(recurrence) | Vein decompressed, felt inplace on PICA | Improved | Good | Balance disorder |
| 22 | 56 | F | 18 months(recurrence) | AICA decompressionaugmented, 2 veins treated | Failed | Underwentthird operation | None |
| 23 | 50 | F | 12 months(recurrence) | PICA loop with felt in place,augmented with more pledgets | Failed | Underwentthird operation | None |
| 24 | 57 | M | 4 months (failure) | Felt too distal on AICA | Cured | Excellent | None |
| 25 | 48 | F | 10 months(recurrence) | Felt well placed on AICA andPICA. 2 veins and 1 arterialperforator divided | Cured | Excellent | Unilateral vocal cord paralysis |
| 26 | 56 | F | 8 years(failure) | Vertebral artery and PICAcompressing CN 7 (no feltvisualised) | Cured | Excellent | None |
| 27 | 71 | M | 3 years(recurrence) | Felt well placed on AICA,vein divided | Cured | Excellent | None |
| 28 | 37 | M | 11 months(recurrence) | Felt too distal on AICA(repaired), vein divided | Cured | Excellent | None |
| 29 | 39 | F | 6 years(failure) | Unidentified arterycompressing CN 7, felt within7–8 complex | Cured | Excellent | None |
| 30 | 74 | F | 2 years(recurrence) | Felt worn thin on AICA, veindivided | Cured | Excellent | HBS increased from 2 to 3 |
| 31 | 37 | F | 1 year (failure) | Felt augmented on PICA | Cured | Excellent | None |
| 32 | 56 | M | 7 years(recurrence) | Arachnoidal scar involving PICAdissected, no felt visualised | Cured | Excellent | HBS increased from 2 to 3;SAT increased from 15 to 52 dB |
| 33 | 52 | F | 12 years(recurrence) | No intracranial opening | Failed | Underwentthird operation | Extracranial vertebral artery injury requiringendovascular sacrificeand 3 months’ anti-coagulation |